Car ventilation.



Patented Sept. l0, l90l.

R E T 0 c W 6 W Z 8 6 0 N GAR VENTILATION.

(Application filed on. an, 1900.

UNITED STATES PATENT FFICE.

WILLIAM T. COTTIER, OF PORTLAND, OREGON.

CAR VENTILATION.

SPECIFICATION forming part of Letters Patent No. 682,176, datedSeptember 10, 1901.

Application filed October 25, 1900. Serial No. 84,315. (No model.)

To all whom it may concern:

Be it known that I, \VILLIAM T. COTTIER, a citizen of the United States,residing at Portland, in the county of Multnomah and State of Oregon,have invented new and useful Improvements in Car Ventilation, of whichthe following is a specification. 1

My invention relates to ventilated cars and it consists in peculiarmeans for ventilating passenger, express, and other cars, the nov-.

elty and material advantages of which will be fully understood from thefollowing description and claims when taken in conjunction with theaccompanying drawings, in which Figure 1 is a transverse broken sectionof a railwaycar equipped with my improved ventilating devices. Fig. 2 isa detail section taken in the plane indicated by the broken line 2 2 ofFig. 1 and illustrating one of the suction devices for creating a vacuumor partial vacuum inside the car. Fig. 3 is an enlarged section taken inthe plane indicated by the broken line 3 3 of Fig. 1 and illustratingone of my improved fresh-air-induction devices for admitting air to theinterior of the car at intervals incident to the creation of partialvacuums therein. Fig. 4 comprises enlarged disconnected perspectiveviews of the portions of my improved freshair-induction device.

In the said drawings similar letters of reference designatecorresponding parts in all of the views, referring to which- A is acar;body, which in general may be of the ordinary or any approvedconstruction.

B is a suction device for creating a partial vacuum in the interior ofthe car-body, and O is a fresh-air-induction device for admitting air tothe interior of the car at intervals, as will be presently described.Any suitable number of the suction devices B and induction devices 0 maybe employed, although I prefer to use six of the former and connectderstanding of all. Said suction device comprises alongitudinally-disposed body a, arranged parallel to the deck-sash ofthe carbody, and having a lateral branch I), which extends through thedeck-sash and communicates with the interior of the body, and alsohaving side walls 0 and end walls 61, forming a chimney, a cap e,arranged about the proportional distance illustrated above the chimneyand mounted on supports f, rising from the same, and inductors g. Theend walls (1 of the body a are curved upwardly and inwardly, as shown,and serve, in conjunction with the side walls 0 and interior-curvedwalls It, to form the said inductors g, which have flared mouths, andare gradually reduced in size toward their inner ends, as shown, with aview of increasing the draft.

By virtue of the construction of the suction device as described it willbe seen that air passing through the inductors g and thence out throughthe upper end of the chimney will operate to create a partial vacuum inthe suction device and also in the interior of the car-body andthoroughly exhaust impure air from the latter. It will also be observedthat this operation will take place when the car is standing still aswell as when it is in motion. As before stated, two fresh-air-inductiondevices are preferably employed; but as these are similar inconstruction a detailed description of the one shown in Figs. 3 and 4will suffice to impart an understanding of both. The said inductiondevice comprises a screen i, arranged in a suitable frame j at the outerside of the end wall of the car-body and over or coincident with anopening it in said end wall, horizontal bars Zm, arranged below andabove the opening 7.: and connected to the inner side of the end wall, arectangular open frame n, interposed between the bars Zm, a screen 19,connected to the inner face of said frame-that is, the face toward theinterior of the car-body-and an imperforate flap 0", connected in ahinged manner to the upper horizontal bar of the frame n and arranged tonormally rest over the screen 19, at the inner side thereof. The lowerwall of the opening lc in the end wall is preferably inclined downwardlyand inwardly, as best shown in Fig. 3, and the lower horizontal bar 8 ofthe frame -n is disposed below the lowermost point of said lower walland is wider than the lower support Z and apertured, as indicated by 15.By virtue of this it will be observed that any dust that may find itsway through the screen 5 2' will fall upon the bottom bar 3 of the frameat and pass through the openings at therein to the floor of thecar-body. This obviously prevents the dust being carried with the draftof air through the car-body and deposited on the to fruit therein and isan important and material advantage for such reason.

The frame it is by preference detachably secured between the bars Z mand against the inner side of the end wall in order that it may bereadily removed when it is desired to clear the screen 17 of dust andother sediment that has collected thereon. To effect such connection, Iprefer to employ dowel-pins u on the upper bar m and sockets 'v in theupper I 20 bar or frame at to receive the same, eyes to on the innerside of the end wall of the car-body,

and complementary hooks 00 on the vertical bars of frame a. From this itfollows that in order to remove the said frame nit is sim- 2 5 plynecessary to disengage the hooks m from the screen 19 has been cleared,the operation described is reversed.

By virtue of the employment of the suction devices B and inductiondevices C in conjunction with a car it will be seen that when a vacuumor partial vacuum is created in the car through the medium of thesuction devices the fiap r of the induction device is lifted by theatmospheric pressure to the vacuum in the interior of the body, and whenvacuum is occupied by fresh air the flap immediately falls or closes ofits own weight. This insures the supply of an ample quantity of freshair to the interior of the car and precludes a constant rush or draft ofair therethrough, which is objectionable because it causes evaporationor drying up of any fruit or other perishable goods contained in the carand also because it is liable to cover the fruit or other goods to agreater or less extent with fine dust.

Inasmuch as the air is exhausted from the interior of the car throughthe medium of the suction device when the car is standing still as wellas when it is in motion it will be observed that fresh air will beadmitted at intervals to the interior of the car through the inductiondevice at all times, and consequently a pure and wholesome atmospherewill be continuously maintained in the interior of the car.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s-

1. The combination with a car having an opening in one of its walls, thelower wall of which is inclined downwardly and in= wardly; of arectangular open frame arranged at and connected to the inner side ofsaid end wall, and having openings 25 in its lower bar for the dischargeof dust and dirt, a screen attached to the inner face or face of theframe that is presented to the interior of the car, and an imperforateflap connected in a hinged manner to the upper bar of the frame andarranged to normally rest over the screen carried by said frame,substantially as specified.

2. The combination of a car having an opening in one of its verticalwalls, the lower wall of which is inclined downwardly and inwardly,'abar Z connected to the inner side of said wall below the opening, a baron connected to the inner side of the wallabove the opening, and havingdepending dowel-pins, therectangular frame interposed between the bars Zand m, and having the lower bar of a greater width than the bar Z, andprovided with apertures t, and the upper bar provided with sockets toreceive the dowel-pins, the screen connected to the inner face of therectangular frame, an imperforate flap connected in a hinged manner tothe upper bar of the rectangular frame, and adapted to normally restover the screen, a detachable connection between the rectangular frameand the wall of the car, and one or more suitable suction devicesconnected to and communicating with the interior of the upper portion ofthe car.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

\VILLIAM T. OOTTIER.

WVitnesses:

GEO. GOBLISOH, JOHN PILGER.

